diff --git a/charts/virtual-machine/values.yaml b/charts/virtual-machine/values.yaml
index cf2f6ed..5a1742a 100644
--- a/charts/virtual-machine/values.yaml
+++ b/charts/virtual-machine/values.yaml
@@ -8,5 +8,5 @@
 ports: []
 cloudInit:
   userData: {}
-  networkData: {}
+  networkData: "" # base64 encoded
 configFiles: {}